TerraLUX Tactical lights are designed to withstand the harsh demands of tactical applications and everyday use. The TT series featuring a super rugged aircraft-grade 6061 aluminum type III hard anodized body, three output levels plus a tactical strobe, and dual switches for on/off and mode selection, these lights are designed for military and law enforcement use but also great for all-purpose use and outdoor activities. With an IPX8 waterproof rating and impact resistant up to 1.5 meters, these rugged lights are designed to last a lifetime and are protected by TerraLUX's limited lifetime warranty. Plus, the new TDR-2 offers all the features of the TT series and more; tough, powerful, and USB rechargeable. You'll want to give these lights a shot.